Free tool

LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Slyboot Car

Checking

3023 Slyboot Car

19 pieces in 10 part and color combinations, plus 1 minifigure.

LEGO counts 24 pieces. This inventory comes from a separate parts catalog and lists 23, including the 4 parts inside the minifigures; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Show

Piece checklist

Wheels and Tyres 8 pieces

  • Tyre 14 x 4 Smooth Small Single Black Part 3139 Element 313926 ×4
  • Wheel 8 x 6 Light Gray Part 4624 Element 462402 ×4

Plates Special 4 pieces

  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×2
  • Plate Special 2 x 2 with Wheel Holders Black Part 4600 Element 460026 ×2

Plates 2 pieces

  • Plate 2 x 6 Light Gray Part 3795 Element 379502 ×2

Bricks Sloped 1 piece

  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×1

Bricks Special 1 piece

  • Brick Special 1 x 2 Palisade [aka Log] Dark Gray Part 30136 Element 4114054 ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Weapon Gun / Pistol / Revolver Large Barrel, Long Grip Dark Gray Part 30132 Element 4105286 1 spare in the box ×1

Panels 1 piece

  • Panel 1 x 2 x 1 [Square Corners] Trans-Clear Part 4865a Element 4113106 ×1

Transportation - Land 1 piece

  • Steering Stand 1 x 2 with Black Steering Wheel Light Gray Part 3829c01 Element 9556 ×1

Minifigures 1 figure

  • Lord Sam Sinister Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.